EP 2843281 B1 20160727 - Diagnostic method for detecting control valve component failure
Title (en)
Diagnostic method for detecting control valve component failure
Title (de)
Diagnoseverfahren für den Nachweis einer defekten Steuerventilkomponente
Title (fr)
Procédé de diagnostic pour détecter une panne d'un composant de soupape de commande
Publication
Application
Priority
- US 4049808 A 20080229
- EP 09716483 A 20090116
Abstract (en)
[origin: US2009222220A1] The claimed method and system identifies faults and/or deterioration of components in a process control valve. The system may use different sensor combinations to provide the necessary data to compute irregular component integrity. Alerts may be generated to indicate potential component integrity problems. In particular, the system may detect potential deterioration and/or faults in actuator springs, pneumatic tubing and piping, and bellows seals. The claimed system may be communicatively coupled to a process control network to provide a more elaborate alarm system. Moreover, additional statistical methods may be used to refine the detection accuracy of the system.
IPC 8 full level
F16K 37/00 (2006.01)
CPC (source: CN EP US)
F16K 37/0075 (2013.01 - CN); F16K 37/0083 (2013.01 - CN EP US); F16K 37/0091 (2013.01 - CN EP US); G01M 3/00 (2013.01 - US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
DOCDB simple family (publication)
US 2009222220 A1 20090903; US 8036837 B2 20111011; AR 070628 A1 20100421; BR PI0908254 A2 20150721; BR PI0908254 A8 20181023; CA 2715846 A1 20090911; CA 2715846 C 20150331; CA 2848948 A1 20090911; CA 2848948 C 20160517; CA 2848950 A1 20090911; CA 2848950 C 20150421; CN 101960193 A 20110126; CN 101960193 B 20160824; CN 105114692 A 20151202; CN 105114692 B 20171215; CN 105605299 A 20160525; CN 105605299 B 20181019; EP 2257724 A1 20101208; EP 2257724 B1 20141105; EP 2843280 A1 20150304; EP 2843280 B1 20160727; EP 2843281 A1 20150304; EP 2843281 B1 20160727; JP 2011513832 A 20110428; JP 2013242909 A 20131205; JP 2013242910 A 20131205; JP 5439388 B2 20140312; JP 5677528 B2 20150225; JP 5795031 B2 20151014; MX 2010009508 A 20100922; RU 2010138453 A 20120410; RU 2493467 C2 20130920; US 2012029848 A1 20120202; US 2013231874 A1 20130905; US 8417468 B2 20130409; US 8768631 B2 20140701; WO 2009111101 A1 20090911
DOCDB simple family (application)
US 4049808 A 20080229; AR P090100627 A 20090224; BR PI0908254 A 20090116; CA 2715846 A 20090116; CA 2848948 A 20090116; CA 2848950 A 20090116; CN 200980107133 A 20090116; CN 201510624725 A 20090116; CN 201510625001 A 20090116; EP 09716483 A 20090116; EP 14186824 A 20090116; EP 14186841 A 20090116; JP 2010548754 A 20090116; JP 2013155900 A 20130726; JP 2013155901 A 20130726; MX 2010009508 A 20090116; RU 2010138453 A 20090116; US 2009031273 W 20090116; US 201113243604 A 20110923; US 201313857409 A 20130405